MC74HC245ADTR2G

Overview

The MC74HC245ADTR2G is an octal, 3-state, non-inverting bus transceiver manufactured by onsemi. It utilizes high-performance silicon-gate CMOS technology and operates within a supply voltage range of 2 V to 6 V. The device features eight bidirectional data channels with a TSSOP-20 surface-mount package. It provides low input current and high noise immunity, making it suitable for memory and address bus drives.

Feature Summary

• Octal bidirectional data transmission capability
• 3-state output design for bus line isolation
• Non-inverting logic function
• Compatible with TTL and CMOS input levels

Applications

• Memory and address bus drives
• Clock drivers
• Bidirectional data bus communication interfaces

Procurement Notes

Verify the specific suffix 'DTR2G' confirms the tape-and-reel packaging format and RoHS compliance status. Confirm the operating temperature range matches system requirements. Ensure the TSSOP-20 footprint aligns with PCB layout specifications before finalizing procurement orders.

Selection Notes

Select this component when an octal transceiver with a wide 2 V to 6 V supply range is required. It serves as a pin-compatible alternative to LS245 devices but offers improved speed and lower power consumption due to CMOS construction. Ideal for systems needing bidirectional data flow control.

Part Context

This part belongs to the 74HC245 family of bus transceivers. It shares the same pinout configuration as legacy LS245 components, facilitating direct upgrades in existing designs. The device is designed for high-speed digital applications requiring reliable bidirectional data transfer across multiple lines simultaneously.

Replacement Considerations

The MC74HC245ADTR2G is pin-compatible with the SN74LS245. Verify that the higher speed and different drive characteristics of the HC series do not impact signal integrity in the target application compared to the original LS design.